bought a blazer off a person i do my own mechanic work he told me it was running but then hit a deer has a new fuel pump in it the ignition was broke still is, i have and extra computer, coil, crankshaft sensor, camshaft sensor i took the distributor outi know how to tdc and put it at 6 and that the button turns as you put it in but still no spark what could i be missing all the fuses and relays work what else tell it to spark so it can fire the plugs